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Katsuwonus pelamis  (Linnaeus, 1758)

Skipjack tuna
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Image of Katsuwonus pelamis (Skipjack tuna)
Katsuwonus pelamis
Male picture by Freitas, R.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae

Omgeving / Klimaat / Range Ecologie

; marien; oceanodroom; diepteverspreiding 0 - 260 m (Ref. 9340), usually 0 - ? m (Ref. 55287).   Tropical; 15°C - 30°C (Ref. 168); 63°N - 47°S, 180°W - 180°E

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Cosmopolitan in tropical and warm-temperate waters. Not found in the Black Sea. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm 40.0, range 40 - 45 cm
Max length : 110 cm FL mannelijk/geslacht niet bekend; (Ref. 89423); common length : 80.0 cm FL mannelijk/geslacht niet bekend; (Ref. 168); Maximaal gepubliceerd gewicht: 34.5 kg (Ref. 168); Maximaal vermelde leeftijd: 12 jaren (Ref. 168)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 14 - 16; Dorsale zachte stralen (totaal): 14-15; Anale stekels 0; Anale zachte stralen: 14 - 15; Wervels: 41. Interpelvic process small and bifid. Body without scales except for the corselet and the lateral line. Swim bladder absent. The back is dark purplish blue, lower sides and belly silvery, with 4 to six very conspicuous longitudinal dark bands which in live specimens may appear as continuous lines of dark blotches.

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found in offshore waters; larvae restricted to waters with surface temperatures of 15°C to 30°C (Ref. 6390). Exhibit a strong tendency to school in surface waters with birds, drifting objects, sharks, whales and may show a characteristic behavior like jumping, feeding, foaming, etc. Feed on fishes, crustaceans, cephalopods and mollusks; cannibalism is common. Spawn throughout the year in the tropics, eggs released in several portions (Ref. 35388). Eggs and larvae are pelagic (Ref. 6769). Preyed upon by large pelagic fishes (Ref. 6885). Also taken by trolling on light tackle using plugs, spoons, feathers, or strip bait (Ref. 9684). Marketed fresh, frozen or canned (Ref. 9340); also dried-salted and smoked (Ref. 9987).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

In tropical waters, reproductively active female skipjack tuna spawn almost daily.

Voornaamste referentie Upload your references | Referenties | Coördinator : Collette, Bruce B. | Medewerkers

Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)

Status op de Rode Lijst van het IUCN (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Reports of ciguatera poisoning (Ref. 4690)




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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 13.3 - 29, mean 26.2 (based on 8934 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00976 - 0.01232), b=3.11 (3.08 - 3.14), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  4.4   ±0.5 se; Based on diet studies.
Weerstandsvermogen (Ref. 69278):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.3-0.5; tm=2-3; tmax=12; Fec=61,516).
Prior r = 0.82, 2 SD range = 0.36 - 1.84, log(r) = -0.2, SD log(r) = 0.41, Based on: 5 M, 50 K, 3 tgen, 2 tmax, 4 Fec records
Kwetsbaarheid (Ref. 59153):  Moderate vulnerability (40 of 100) .
Prijsklasse (Ref. 80766):   High.